Colour Television Chassis:
Check P44,45 P46 of IC201
and the relative circuit
No Picture
TV&AV
haven’t
Picture
Check RGB signal
Check +8V,
+200V
Ok
Check is there
RGB signal to
CRT BD forom
IC201
Check CRT BD
No
Ok
Replace IC201
TV has Picture. AV hasn’t Picture.
Check is there AV signal
to IC201 form AV input
No
Check IC201
Check AV Signal
input
Yes
AV has Picture. TV hasn’t Picture.
Check tuner TU100
Check tuner working
is ok?
Figure 6 No Picture
Is both +14V and -14V ok?
Yes
No
Is the signal at P1 of
IC301 ok?
Check/Replace IC301
Check signal at P14/P15 of
IC201
No
Check/Replace IC201
Yes
Yes
Check/Replace
, D410, D411
No
Figure 5 No Vertical Scanning
Check the circuit
between IC301 and
IC201
No
Yes
Check Q101 and
SAW filter
Yes
Check circuit between
SAW and IC201
NX56
